Method of and means for treating the surface of the permanent way of railways, &amp;c.



' PATENTBD 00T. 9, 190e.

H. E. HARWOD` METHOD 0E AND MEANS EUR TREATNG THE SURFACE 0E THE PERMANENT WAY 0F RAILWAYS, $50. APPLICATION FILED JULY 14.1906.

ab.; Beasts' i others skilled in the art to which it appertains' to make and use the saine.

I media suliicient to form avthick mixture cainto effect, while Fig. 2 is a plan view of the Athe back or front of a locomotive B, said jet drawing from a supply-tank, as C, a mixture of tar and arsenic, preferably in a heated con- UNITED Aalineariinwenn ir-A'Rwooi). or

.AUSTRALIA-- To (all whom 71/5'k may concern/.1 Y

B'e it' known thatl I, HAMILTON EDWARD HARwoon, a subject of the' King of Great Britain, residingat Mellen Palmer street, .Iolimont,` in ythe State of Victoria, Australia, have invented certain new and useful Improvements in Methods of and Means for Treating the Surface of the -Permanent Way of Railwa s, Sac.; and I do declare the following to )e a full, clear, and exact description of the invention, such as will enable This invention has been devised to provide a method and means for preserving the surface of thatportion of railways known as the permanent way, wherein the rails are fastened to sleepers, said sleepers being held in their position by ballast consisting of stones or the ike. The means employed by me will also prevent the growth of weedy vegetable matters upon such sleepers and ballast.

In order that my invention may be the more easily understood, reference may be made to the accompanying drawings, in which-'- Figure 1 is an elevation of one form of apparatus suitable for carrying my invention subject of Fig. l.

In the drawings, A is a steam-sprayjet upon dition. The engine B proceeds slowly along the line and the spray D is blown by the nozzle or nozzles in the jet A so as to cover the ballast E and sleepers F with a coating of the said tariy arsenious mixture. When a small section of the line has been so sprayed, I lay upon such sprayed surface a compound consisting approximately of about ten pounds of arsenic to two hundred and fifty gallons of tar and to which is added and incorporated cinders, small coke, ashes, gravel, or the like pable of slowly iowing. This` mixture is preferably distributed by a mechanical spreader orwith hand-rakes. Occasional perforations should be allowed at intervals which will enableany rain-water fallin upon such` arts to escape. After the bal ast E4 and s eepersF have been covered to, say, a

siervos.' {fr'o ,"intiinnaick wiLLiA Specification of Letters Patent.l

Application lileil July/14, 1906. Serial No..326230.

`uisition and the wheel H on axle o1 'rnrnnr opinion. l f

JoLiMoNi.vioroniin AUsinALiA, M iiAawooD, oF JoLiMoN'r,

. ,ZEQDY-QMND?MEANS@FOR rRtATINeTHE SURFACE or THE PERMANENT WAY 0E RAawAYs, ac.

Patented ocr. e, i eos.

quarter of an inch in thickness or thereabout `the tar and arsenic Aspray D, hereinbefore' mentioned, is repeated.

When the engine is performing the iinal spraying, the sand-box G is brought into req- ,ierates the chaind so that the latter may revolve the pulley K of a sand-feeder L, which in revolving allows sand to llow in an even film down between guide plates M onto the newly-tarred surface' caused by the spray D as the engine B moves along.

In order that the rails shall not be coated bythe spray, a metal shield N is placed over each one. The shields are attached to a hanging plate N', the latter being fixed to the bedplate of the locomotive B.

It will be understood that where my invention has been employed a permanent way, treated as I have described and hardened by exposure, will not form a congenial ground for grassy or weedy growths. The arsenic being inimical to plant life will kill all seeds or roots already on the sleepers or ballast and prevent any fresh gerininations. A line thus treated will not generate dust when the train is passing, so that there will consequently be less wear and tear upon. the axles and boxes and the machinery of the locomotive enerally owing' to absence of such friction; matter. A saving in lubricant and economy of power will thus also be arrived at.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The method of preserving the surface of permanent way on railways and the like and preventing weedy growths thereon, consisting essentially in the employment of a loco-l motive machine which sprays finely-disseminated arsenic and tar in a heated condition upon the ballast and sleepers, applying a layer upon such sprayed surface of a tar compound when the latter is set, again spraying the whole surface except the rails with heated tar and distributing upon the surface of such heated tar, sand or the like powdered earth, substantial y as and for the purposes set forth. Y

2. The method herein specified of preserving the surface of the permanent way on railways and the like and preventing weedy growths thereon, consisting in spraying the IOS Surface of -all the pernnnwnt Way vxropt the rails with tur, thon laying upon lwut-h sprztyml surface at compound of :irsunir` tur und roln or the lik(` nicdin und when surh lnixturiis Set spraying its stu-faro with tht` arsenic und tar in a hoatod Condition find distributing over thvl surface of sanno ny covering of' sund or pulvorizvrl earth lor drying pur-posits, suhi Stnntiitlly its und for tho purposvs svt forth.

3. .ln u moans forprvscrvnig thvl surfnro of thvl pernmncnt wily on railways and th(` likt) :nul preventing woody growths tlnrvon, und

in colnhinution, a. tur-supply tank, means l'or lnuting sur-h tur, u spraying jvt or (lovim, n locon1oti\fvv for conveying tho parts u long the rui-ls ol' thi` wat) und shitlds for protor'ting thc mils, n sund or 0:1 rth tank und moans for (l0- livvring th(` Sunil oA ourth, substantially as :nnl for tht` pnrposrs sot forth.

tizllly :is und for the purposes sut forth.

ln testimony 'whereof 1 have. Iignml my nn-nu` to this` spvrilcntion in thv provnm of two subscribing witinissvs.

VVitnossvs:

A. I IARKER, F SiNCLAIR. 

